import java.util.Arrays;

public class avg {
    public static int Avg (int[] array){
        int ret = 0;
        for (int i =0;i<array.length;i++){
            ret+=array[i];
        }
        return ret/array.length;
    }
    public static void main(String[] args) {
        int[] array = new int[10];
        for (int i =0;i<array.length;i++){
            array[i]= i+1;
        }
        int ret =Avg(array);
        System.out.println(ret);
    }
}
